Even the smallest daily activity, like brushing one's teeth, requires a trip to the tank, where people pay a large portion of their meager salaries for containers of cloudy,brackish water.

VOA: standard.2010.08.04

But dentists say a baby's gums and early teeth should be cleaned after each feeding.

VOA: special.2009.03.11

And between the teeth was a piece of the animal's ear.

VOA: special.2009.10.31